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Coupling Nut, 5/8"-11 Thread, 2-1/8" Length, Zinc-Plated

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HILLMAN FASTENERS 180222 Coupling Nut, 5/8"-11 Thread, 2-1/8" Length, Zinc-Plated

Item #: 180222 by Hillman Fasteners

Brand: HILLMAN FASTENERS

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$82.40

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WARNING: This Product May Contain Chemicals Known to the State of California to Cause Cancer or Reproductive Harm. To Learn More Visit P65Warnings.ca.gov
Features

Size (W x H x D)

1.00×1.00×0.10

Weight (lb)

0.18

Product Overview
A coupling nut, also known as an extension nut or rod coupling, is a hexagonal fastener designed to connect two pieces of threaded rod or other male threaded fasteners, extending their overall length. This Hillman Group coupling nut (MPN 180222) features a 5/8-inch nominal diameter with 11 Unified National Coarse (UNC) threads per inch, manufactured to a 2B tolerance. It measures 2-1/8 inches in length and has a 13/16-inch width across flats, allowing for tightening with a wrench. Constructed from steel, it is zinc-plated for moderate corrosion resistance. Coupling nuts commonly conform to dimensional standards such as IFI-128 and material specifications like ASTM A563 Grade A for carbon steel.